Acetylene-gas lamp.



No. 678,770. Patented Iuly [6, mm.

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ACETYLENE GAS LAMP.

(Application filed A r. 11, 1901.) (No Model.) 9 2 Sheets-Sheet I.

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AOETYLENE GAS LAMP.

(Application filed Apr. 11, 1901.) (No Model.) 2 Sheets8heet 2.

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UNTTED Sterne M ,N w I Paras 1 orment .ROBERT E. SLEVVING, OF LAJUNTA,COLORADO.

ACETYLEN E GAEE LAM i SEECIFIGATIQN forming part of Letters Patent No.678,770, dated Zuly 16, 1901.

Application filed April 11, 1901.

T (LZZ whom it meaty concern:

Be it known, that I, ROBERT It. SLnwINe, a citizen of the United States,residing at Lajunta, in the county of Otero and State of Colorado, haveinvented new and useful Improvements in Acetylene-Gas Lam ps,of whichthe following is a specification.

My invention relates to acetylene-gas lamps of the particular class inwhich the tank, generator, and burner are all combined; and the objectof the same is to produce a lamp which can belighted in a moment,extinguishedjust as quickly, and at the same time be simple inconstruction and economical and efficient in operation. This object andthese advantages are attained by the novel construction described inthis specification and claimed, and illustrated in the accompanyingdrawings, forming a part thereof, in which- Figure 1 is a side elevationof the complete lamp. Fig. 2 is a vertical longitudinal section of thesame. Fig. 3 is a detail of the carbid-receptacle. Fig. 4 is a detail ofthe water-cup. Fig. 5 is a detail of the valve.

Like numerals of reference designate like parts in the different viewsof the drawings.

The numeral 1 designates the casing of my lamp. This casing iscylindrical in form, open at the bottom at 2, and closed at the top by arounded cover 3. Mounted on the top of the cover'3 is a water-reservoirat, entirely closed, but provided with an opening covered by a screw-top5 for the admission of water and a valve 6 for drawing oil the water.The bottom 7 of the reservoir slopes toward the valve 6. The valve 6consists of a conical plunger 8, attached to the lower end of a rod 9,passing down through the reservoir. The plunger 8 is inclosed in acasing 10, within which is located a seat 11 for the plunger. The casing10 is perforated at 11 to admit Water, and a pipe 12 is joined theretoto provide an outlet for the Water and to conduct it into the casing.When the plunger 8 is seated, the access of water to the pipe 12 is cutoff. A jet-pipe 13 is joined to the cover 3 and passes up through thereservoir 4. This pipe 13 is surmounted by a burner 14, detachablysecured thereto.

A wire-gauze carbid-receptacle 15, open at the top, is suspended by abail 16, provided with a hook 17, which engages a cross-bar 18,

Serial No. 56,382. (No model.)

spanning the mouth of the pipe 13. The carbid-receptable fits looselythe casiu g 1 and leaves room for a water-cup.

The wateucup 19 is open at the top and mounted to slide within thecasing, which it fits very snugly. To provide means for rais ing andlowering the cup 19, as well as to hold it in position in the casing, apair of catches 20 are mounted in bayonet-slots 21 in the sides of thecasing. These catches 20 have thumb-pieces 22 on their upper ends andtoes 23 on their lower ends, which extend under the bottom of the cup 19and support it. The casing 1 is provided with a rim 2st, extendingaround the bottom thereof. The catches 20 pass through apertures 24: inthe upper edge of the rim, which thus serve as stops to limit thedownward movement of the catches by engaging the thumhpieces 22.

The upward movement of the catches 20 is limited by the tops of theslots 21. To hold the cup suspended, the toes 22 are turned to engagethe short arms 2l= of the slots 21. The lower position of the cup isshown in Fig. 2 in dotted lines, while the uppermost is shown in fulllines. lVhen the cup 19 is in its uppermost position, its upper edge 19is covered by an overhanging rim 25, which isslightly flared at 25. Thisrim serves as a seal to prevent the escape of gas.

To get my lamp ready for operating, the reservoir 4 is filled with waterby means of the opening closed by the screw-top 5. The water-cup 19 isnext removed by lowering it to its bottom position and then turning thetoes 23 around at right angles. The carbidreceptacle 15 is thendisengaged and is taken out of the casing and filled with carbid. Thischarge will last about fifteen hours. The receptacle 15 and the cup 19are then replaced. When it is desired to light the lamp, the Water-cup19 is raised by means of the catches 20 to its uppermost position andthe valve 6 opened. The water will drip from the pipe 12 into the cup 19and will soak up into the carbid, starting the generation of gas. Thegas will ascend through the pipe 13 to the burner 14., which can then belighted. When the lamp is to be extinguished, the water-cup 19 islowered and the valve 6 shut. The light will almost immediately go out.

I do not wish to be limited as to details of construction, as these maybe modified in on their upper ends and toes on their lower manyparticulars without departing from the ends, which toes are mounted toslide in said spirit of my invention. bayonet-slots and support saidcup, substan- 15 Having thus described my invention, what tially asdescribed. 5 I claim as new, and Wish to secure by Letters In testimonywhereof I have hereunto set Patent, is my hand in presence of twosubscribing wit- In a device of the class described, the comnesses.bination with a casing having bayonet-slots ROBERT E SLEWING therein, awater-reservoir surmounting said I 10 casing and provided with anoutlet-valve, a i Witnesses:

CARL KRUSE, WILL BOWEN.

carbid-receptacle inciosed in said casing, a water-cup, and catcheshaving thumb-pieces

